Method for repairing electrically erosive pot hole on surface of liquid silicone rubber shed

Abstract

Disclosed is a method for repairing an electrically erosive pot hole on a surface of a liquid silicone rubber (LSR) shed, including the following steps: using RTV anti-pollution flashover paint as a first coating, and coating the RTV anti-pollution flashover paint on a surface of an electrically erosive pot hole to make the surface of the pot hole smooth; using a mono-component RTV repair adhesive as a second coating to fill the electrically erosive pot hole, so as to fill and level up the electrically erosive pot hole, and the mono-component RTV repair adhesive is closely bonded to the first coating; and using the RTV anti-pollution flashover paint as a third coating, and coating the RTV anti-pollution flashover paint on the second coating. The method enables the appearance and performance of an LSR shed on which electrical erosion occurs to be effectively recovered.

What is claimed is: 
     
         1 . A method for repairing an electrically erosive pot hole on a surface of a liquid silicone rubber (LSR) shed, comprising the following steps:
 using RTV anti-pollution flashover paint as a first coating, and coating the RTV anti-pollution flashover paint on a surface of an electrically erosive pot hole to make the surface of the pot hole smooth;   using a mono-component RTV repair adhesive as a second coating to fill the electrically erosive pot hole, so as to fill and level up the electrically erosive pot hole, and the mono-component RTV repair adhesive is closely bonded to the first coating; and   using the RTV anti-pollution flashover paint as a third coating, and coating the RTV anti-pollution flashover paint on the second coating.   
     
     
         2 . The method according to  claim 1 , wherein the RTV anti-pollution flashover paint used as the first coating and/or the second coating satisfies standard DL/T 627-2012. 
     
     
         3 . The method according to  claim 1 , wherein the mono-component RTV repair adhesive has the following performance:
 a tensile strength (MPa) is greater than or equal to 2.0;   a relative elongation percentage (%) is greater than or equal to 200;   a hardness (HA) is greater than or equal to 20; and   an electric strength (MV/m) is greater than or equal to 17.   
     
     
         4 . The method according to  claim 1 , wherein: before the first coating is coated, the electrically erosive pot hole is polished and cleaned. 
     
     
         5 . The method according to  claim 2 , wherein: before the first coating is coated, the electrically erosive pot hole is polished and cleaned. 
     
     
         6 . The method according to  claim 3 , wherein: before the first coating is coated, the electrically erosive pot hole is polished and cleaned. 
     
     
         7 . The method according to  claim 4 , wherein the polishing comprises polishing a periphery of the electrically erosive pot hole to make an interface of the periphery of the electrically erosive pot hole smooth. 
     
     
         8 . The method according to  claim 5 , wherein the polishing comprises polishing a periphery of the electrically erosive pot hole to make an interface of the periphery of the electrically erosive pot hole smooth. 
     
     
         9 . The method according to  claim 6 , wherein the polishing comprises polishing a periphery of the electrically erosive pot hole to make an interface of the periphery of the electrically erosive pot hole smooth. 
     
     
         10 . The method according to  claim 1 , wherein: a process of filling the electrically erosive pot hole by using the mono-component RTV repair adhesive comprises: uniformly applying the repair adhesive until a surface of the second coating is smooth and is flush with the surface of the shed. 
     
     
         11 . The method according to  claim 2 , wherein: a process of filling the electrically erosive pot hole by using the mono-component RTV repair adhesive comprises: uniformly applying the repair adhesive until a surface of the second coating is smooth and is flush with the surface of the shed. 
     
     
         12 . The method according to  claim 3 , wherein: a process of filling the electrically erosive pot hole by using the mono-component RTV repair adhesive comprises: uniformly applying the repair adhesive until a surface of the second coating is smooth and is flush with the surface of the shed. 
     
     
         13 . The method according to  claim 4 , wherein: a process of filling the electrically erosive pot hole by using the mono-component RTV repair adhesive comprises: uniformly applying the repair adhesive until a surface of the second coating is smooth and is flush with the surface of the shed. 
     
     
         14 . The method according to  claim 5 , wherein: a process of filling the electrically erosive pot hole by using the mono-component RTV repair adhesive comprises: uniformly applying the repair adhesive until a surface of the second coating is smooth and is flush with the surface of the shed. 
     
     
         15 . The method according to  claim 6 , wherein: a process of filling the electrically erosive pot hole by using the mono-component RTV repair adhesive comprises: uniformly applying the repair adhesive until a surface of the second coating is smooth and is flush with the surface of the shed.